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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1041585Generated: October 31, 2026

Pyridine → HCID 67264032, compound

https://huagongshe.com/reaction/1041585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantChloroacetyl chlorideHCID 6577—
Reactant5,5-dimethyl-8-nitro-2,3,4,5-tetrahydro-1H-benzo[b]azepineHCID 57470256—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 67264032HCID 67264032—

Reaction Steps

5,5-Dimethyl-8-nitro-2,3,4,5-tetrahydro-1H-benzo[b]azepine (0.837 g, 3.80 mmol), pyridine (0.408 mL, 5.04 mmol) and 4-dimethylaminopyridine (14.4 mg, 0.118 mmol) were dissolved in anhydrous 1,2-Dichloroethane (9.0 mL) before adding chloroacetyl chloride (0.403 mL, 5.07 mmol). The reaction was stirred at room temperature for 3 hours, washed sequentially with 1 N HCl, water, saturated sodium bicarbonate solution and brine. The organic phase was dried with magnesium sulfate, filtered and concentrated under reduced pressure. The residue was triturated with ether (6 mL×2) to yield a crude brown solid, 2-Chloro-1-(5,5-dimethyl-8-nitro-2,3,4,5-tetrahydro-benzo[b]azepin-1-yl)-ethanone. LCMS: m/z=297.42 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08552186B2
Source datasetuspto-grants-2013_10
ORD IDord-6afb515eb2b6461fb0c6166246a1c22f
Source noteuspto-grants-2013_10